■ Korean study series made in separate book■ We will make it based on the National Korean Language Standard Dictionary.■ A comprehensive version of the Korean language study series has also been released.■ Foreign language notationAlthough foreign words such as messages, mysteries, and sunglasses are mixed in Korean and are spontaneous, there are not many people who know the exact hangeul notation of these words.This is because the foreign language notation is not very simple.So I made it. It is a foreign language notation study app that you can learn while reading the foreign words which are often used in daily life but are easy to be mistaken.There are various problems to learn the principles and principles of foreign language writing.To solve the problem and naturally learn the notation of foreign language, we have attached related foreign language notation for each problem.Above all, we have implemented the problem solving method itself in a concise and fun way, so that we can feel the taste of study from the fingertips.I would like to be a good learning tool for those who want to use Korean properly, but it is also useful for those who prepare for official exam or Korean proficiency test.■ Features- Detailed explanations and related rules- Wrong problem review function- Learning alarm by push- Useful words written in foreign language (about 400,000 words)- Ability to solve random problems